Variable leading device for writing machines



1964 G. J. H. SAUSELE 3,117,666

VARIABLE LEADING DEVICE FOR WRITING MACHINES Filed Dec. 14, 1961 4Sheets-Sheet 1 'III FIG.

INVENTOR 650F615 J/l 5/105545 ATTORNEYS Jan. 14, 1964 G. J. H. SAUSELE3,117,666

- VARIABLE LEADING DEVICE FOR WRITING MACHINES Filed Dec. 14, 1961 4Sheets-Sheet 2 IE 67.! o. g I

5 'HO 5; 615 i we I I INV ENT OR 650E624 J14 5405.54 5

ATTORNEYS Jan. 14, 1964 G. J. H. SAUSELE 3,117,666

VARIABLE LEADING DEVICE FOR WRITING MACHINES Filed Dec. 14, 1961 v 4Sheets-Sheet 3 INVENTOR 650265 J. /l 5405515 BY wflhzh ATTORNEYS Jan.14, 1964 G. J. H. SAUSELE 3,117,666

VARIABLE LEADING DEVICE-FOR WRITING MACHINES Filed Dec. 14, 1961 4SheetsShee1f. 4

'LlO INV EN TOR 6501665 JH 5405515 akzlb.

ATTORNEYS United States Patent "ice 3,117,666 non rsacrmnss George 3.dausele, New Providence, N.Ll., assignor to American Type Founders 60.,Ina, Elizabeth, NJ, a corporation of Delaware Filed Bee. 14, 1%1, S-er.No. 159,219 7 Claims. (Cl. 197120) This invention relates to writing orcomposing machines and more particularly to line spacing or leadingdevices for incorporation into such machines.

Although the principles of the invention are applicable to a widevariety of text printing and reproducing rnachines, includingtypewriters, the invention finds especial adaptability and utility inconnection with photo-typesetter systems and for convenience will beillustrated and described herein in connection with the photo-typesetterinstallation disclosed in my coending application Serial No. 686,233,filed September 25, 1957, Patent No. 3,082,670, granted March 26, 1963.

in these machines, normal line spacing is ordinarily effected as anincident to the return of the carriage upon the completion of a line oftype. The pull of the carriage return mechanism acts through theratcheting device which advances the sheet or film which receives theimpression, so that the advance takes place during the earliest stagesor" the carriage return operation, and the return or retraction or" theratchet actuator to normal or idle position is effected by spring actionat the moment the carriage trikes its stop means upon tis return toinitial Writing osition for the start of another line of text. However,provision is also made for effecting an advance of the receiving mediumaccording to the predetermined setting upon occasions when the ordinarycarriage return operation is not pursued, as for example in the casewhere multiple or repeated loadings are desired; but in the operation ofthe photo-typesetter, sufiicient time must be allowed in the tapeprogramming, for the recovery of the ratcheting. Thus, in keyboardingfor the production of copy and/ or tape, it is the practice to strikethe tabulatkey before using the line space or carriage return key.

But any increase in line spacing or lead ng can only be done by thismeans in exact multiples of the predetermined setting.

It is therefore the general object of the .presentinvention to rovidemeans by which additional increments of leading may be applied as byauxiliary advancing means actuated by the line space or carriage returntrey, or in a photo-typesetter unit automatically by suitable signalsset o in the control tape by means of actuation of such :eys in therecorder or lreyboard unit.

Thus, two settings of line space are provided, a primary ng a secondarysetting; and it is possible 'by use of these novel features to record /1point, 1 point, 2 point,

point, and 3 point increments of leading at any place key.

The invention in its preferred embodiment contemplates the provision ofmoms supplementing the usual line spacing device associated with thecarriage return, by an auxiliary device by which additional leading in/2 point increments from zero up to the full value of the primarysetting, may be attained.

Other objects and features of novelty will be apparent from tnefollowing specification when read in connection with the accompanyingdrawings in which one embodiment of the invention is illustrated by wayof example.

in the drawings:

FIGURE 1 is a fragmentary View of the upper portion Federated dart I14,

of the carriage of a typesetter machine embodying the principles of theinvention, the view being mainly in rear elevation but with parts brokenaway for the sake of clearness of illustration;

FIGURE 2 is a view in elevation as seen from the righthand side ofFEGURE l, but of course representing the left-hand side of the machinefrom the view-point of the operator at the keyboard, a portion of thecharacter reproducing means being indicated fragnientarily in section;

EEGURE 3 is a view in elevation as seen from the lefthand side of FEGURE1, that is, of the right-hand side of the machine as operated, andillustrating the secondary leading mechanism which comprises anessential part of the invention;

FEGURE 4- is a fragmentary enlarged view of the lefthand portion ofFIGURE 1 showing the carriage displaced slightly fr in its returned,retracted, or initial position;

FIGURE 5 is a detail view in cross-section taken on line 55 of FIGURE 3;

FlGURE 6 is a fragmentary View taken generally from the left in ElGURE 2and showing the primary leading mechanism mainly in elevation; and

FIGURE 7 is an exploded view of the major portion of the secondaryleading mechanism, at least those parts which are carried by thecarriage.

Reference is made to my above me; tioned co-pending application for thedisclosure of writing or composing machines which may be considered asexamples of those to which the present invention may be applied,although the invention in its broad scope may be used in connection witha wide variety of writing machines. in that patent a recording orkeyboard machine for simultaneously preparing a typewritten copy of thecomposition and a punched tape record thereof, is shown at A; and areproducing unit in the form of a photo-typesetter is indicated at B.The principles of the present invention may be applied to either ofthese instrumentalities.

The base framing of these units is designated in that application by thereference numeral 5%? and supports a keyboard 19B and a carriage E,which carriage is adapted to move a ong the frame in incrementsappropriate to the character width, letter and Word spacing, andjustification modifications, as permitted by the escapement mechanismprovided. The basic or general carriage construction and arrangementadapted for the typesetter unit, together with the early line spacingfeatures, are well illustrated in FIGURES 30, 31, 32, -34 and 35 of thatapplication; and FIGURES 1 and 2 of the present application will bereadily recognized as being the respective counterparts of FIGURES 31and 32 of that case. So that analogy may be quickly perceived betweenthe basic structure of the present disclos 'e and that of the earlierapplication, the same or similar reference characters will be em loyedto designate many of the common parts. Thus, the carriage as a whole isindicated at F will be seen to comprise basically the box frame 216which encloses the film f which in this embodiment constitutes themovable medium for receiving the i. -ages of the characters com the textof the composition.

The carriage F is supported for horizontal travel with respect to a baseframe by means of the track bar 56 forming a part of said base frame.The carriage is guided and supported for movement along the tracl; baras by means or" the rollers 56a, Soc, 56d, and c.

The box frame 23%; is provided with a cover plate 211 which is securedthereto as by means of the thumb screws 211A. in EEG RE 1 the coverplate 211 is broken away to disclose the principal operative portions ofthe interior. The transverse rotary shaft 52"" carries the wheels arewhich are provided with pin-pointed proiections 577 which embedthemselves in the dim f and cause it to be fed 3 through incrementsdetermined by the stepped rotation of the shaft 575, to effect theleading or line spacing of the composition. By preference, two of thesefee wheels 576 are provided on the shaft 575 and to accommodate filmwebs of different widths they may be made adjustable along the shaft.

The left-land end of the shaft as seen in FIGURE 1 is supported in abearing member 64 The right-hand portion of the shaft 5'75 passesthrough the elongated bearing boss 61 and carries fixedly upon its endthe hand wheel or knob 7% which may be graduated and is adapted to bemani ulated to secure a proper initial setting of the feed shaftposition or to effect manual changes for whatever reason. Upon theright-hand end portion of the shaft 575 is secured the gear 628. Meansfor keeping track of the amount of film used is provided and takes theform of a counting mechanism indicated generally at 719 and secured tothe frame as by means of the bracket 711. A pinion 712 actuates thecounting device and .ieshes with the feed shaft gear 629, the devicebeing so geared as to indicate film usage in inches.

A stub shaft e22 carried by a suitable portion of the carriage framingprovides an axis for the series of pinions 621, 624, and another pinion,not shown, which is disposed behind the pinion 624 and which meshes withthe gear 632. As more clearly disclosed in the co-pending application,the gear 632 is fixed upon an end of the shaft or trunnion member 566which serves through certain frictional driving means to rotate thewind-up spool which receives the exposed film.

The gear 621 meshes with the film feed gear 62% and the gear 624 in turnmeshes with and is driven by the pinion 625. This pinion 625 is fixed toa bushing 62:; which is freely rotatable upon the end of the shaft 627a.Also fixed to the bushing 626 is the ratchet wheel 662.

The shaft 627:: rotates in suitable bearings carried by the end walls ofthe box frame 214 and projects through the left-hand side of the frameas shown in FIGURE 1. Just inwardly of the ratchet wheel 652 there is atape drum 659 which is pinned to the shaft 627a as at 63. Between theflanged drum 659 and the right-hand wall of the box frame 21%) as viewedin FIGURE 1, there is disposed the notched annular indexing control disc655. This disc is mounted upon a fixed hub of any suitable constructioncarried by or formed upon the wall of the box frame 210 and the disc 655may be manually rotated upon such a support concentrically with theshaft 627a.

Returning now to the drum 65%, it will be seen that the carriage returntape 61% is adapted to be wound about this drum, the major portion ofthe tape being guided about a suitable pulley 617 and extending acrossthe machine toward the left as in FIGURE 1 where the other end portionis ultimately wound upon a power-driven tapereel such as the oneillustrated at dill in the co-pending application. This carriagereturntape winding reel is brought into action by a clutch which is actuatedas a result of the depression of the line space or carriage return keyon the keyboard of the machine. Reference is also made at this point tothe Blodgett Patent No. 2,700,- 447 for certain of the basic structureof the present machines, but which does not constitute novelty in thepresent invention.

Although the principles of the invention are applicable to diiferentkinds of composing devices including impact machines such as tpewriters, and since the illustrative embodiment is set up as a part ofa photo-composing unit according to my above mentioned application, thecharacter reproducing means adapted to function at a relatively fixedpoint is disclosed in FlGURE 2 of the drawings as an optical projectings stem. This system includes the projecting lens 22% fixed in an end ofan inner sliding member 217 of the lens tube installation 2. .5 mountedon or forming a part of the base frame assembly. The end wall of thetube 2-315 has an opening which is aligned with the opening 214 in thetrack bar as and the opening 213 in the front wall of the box frame214). The film or other sensitive web suggested at 1, moves along thebacking plate 211 at the rear of the frame 219 and receives the image ofa selected character along the light beam, the axis of which isindicated by the line L.

The right-hand flange 65 of the drum 6%, as viewed in FlGURE l, and aseen more clearly in FIGURE 6 of the drawings, is provided with tworadial extensions or enlargements 66 and 67. The enlargement 66 providesa pivot for the pawl 672 the tongue of which is adapted to engage theteeth of the ratchet wheel sea; and the enlargement 67 is provided witha pair of openings, either of which may form an anchorage for the spring674a which serves to urge the pawl 672 into engagement wit the ratchetwheel. The opposite flange 69 of the drum 6513 carries a radiallyprojecting stop lug 675, the angular movement of which is restricted bycertain stop elements, which will be described presently, in order togauge the rotary movement of the drum and thus of the ratchet 652. toconform to that required to advance the sheet or film the predeterminedamount. The rotatably adjustable disc 655 carries an embossment in theform of the stop block 677 and the disc is settable about its axis toposition the stop 677 in the proper angular displacement to limit themovement of the drum.

in this connection, a small box-like frame 685 is fixed to the frame 219as by means of the screws 71 and as most clearly shown in FIGURE 6 ofthe drawings, a spring-retracted manually-operable pin or plug 636 isslidable in the frame 685. A key element 638 is fixed to the plug 686 bymeans of the pin '72 and is provided with a head or blade portion 6%which is adapted to enter selected ones of the notches 680 of the disc655. A coil spring 691 bears against the key element 688 and serves tourge the blade 6% into the selected notch when the pin 686 is releasedby the operator.

A fixed stop member 695 surmounts the frame 685 and this serves as theopposite limiting stop element for the stop projection 675 carried bythe drum, the drum and its stop member 675 being permitted a rotarymovement between the abutment 6?5 which it touches in FIGURE 2 and theadjustable stop abutment 677 carried by the disc 655. A resilientholding blade or dog 6% is secured to the frame 635 as by means of thescrew 77 and prevents backward movement of the ratchet 662 when thedriving pawl 672 is not propelling the ratchet.

In order to return the drum to its initial position in acounterclockwise direction as viewed in FIGURE 2, spring means areprovided which are clearly disclosed in FIGURES 1 and 4 of the drawings.A pin 8% extendns from the shaft 627a at its left-hand portion and thispin is adapted to enter one of the slots 81 which are formed in thecollar 65?, and a pin 83 enters an opening in the right-hand end of thecollar 659 and serves an anchorage for the loop 84 formed in theleft-hand end of the coil spring 657a which surrounds the shaft 2'7a andis provided with another loop 85 at its oppos te end by which it issecured to the anchoring pin 65%. which extends from the inner Wall ofthe frame 215. It will be seen that by an appropriate winding of thecoil spring and setting of the collar 659 with respect to the pin S-ilin the shaft 627a the desired tension may be applied for returning theshaft and the drum to initial position against the basic stop abutment695 upon release or tension in the carriage return tape ltl.

It will thus be seen that the above described mechanism will allord theprimary line spacing or leading, particularly when the normal carriagereturn movement is effected. The tape 61% will be pulled in the direction of the arrow in FlGURE 1 and will rotate the drum clockwise asviewed in FIGURE 2, the pawl 672 rotating the ratchet 662 during itspermitted travel and thus through the gearing 625='62tl advance the filmfeed ing shaft 575' an increment corresponding to the setting of the keyor blade in the appropriate notches of the gauging disc 655' The stopprojection 675 of the drum will rotate in the example shown in FlGURE 2through more than 270 until it strikes the abutment 677 carried by thedisc 655 whereupon the line spacing movement is halted and when the pullon the tape is released the mechanism with the exception of the ratchetwheel and the gearing, will retract to the initial posi ion as indicated in FEGURE 2 where the projection 6'75 abuts the left-hand faceof the fixed stop The notches 689 in the disc 655 are so spaced as torepresent successive settings of increments of /2 point each and thereare preferably sutlicient notches to at least provide for line spacingor leading of from 4 to 16 points.

It will of course be understood that once a setting of the key 690 inthe appropriate notch 63% is made, the only repetition of leadingcapable of being accomplished by the mechanism just described, must bein exact multiples of the initial leading.

In order to provide for supplemental variable leading, which can beaccomplished automatically in the type of machine illustrated, asecondary setting device is pro vided and this novel development is bestillustrated in FIGURES 3, 4, 5 and 7 of the drawings, and may of coursealso be seen at the left-hand side of FIGURE 1.

Upon the protruding end of the shaft 627:: at the left-hand side ofFIGURES l and 4 (actually the righthand side of the machine as theoperator faces it) is fixed the line space indexing disc 1% of theauxiliary setting device, the disc proper having a hub lull throughwhich the set screw 192 is threaded in order to fix it rigidly to theshaft.

Next upon the shaft end there is disposed the line space cam and stopmember 1%, this element eing best shown in FIGURES 3 and 7 of thedrawings as comprising a circular plate having a wing-like extension 1%,the extension having a fiat abutment face in? and an inclined orchamfered cam face 119% at the opopsite side thereof. A pin lit) has aforce fit through an opening in the wing 1th) and is adapted to beselectively intro duced into one of the plurality of holes 112 formed inthe adjacent face of the disc 1%. A tubular extension 115 is formed onthe member ill-5 to form a cup or pocket for the reception of the coilspring 115 which is adapted to be compressed within the pocket of thetubular part 115 by means of the washer 118 which in turn is retained bythe head of the screw 12-53 which is adapted to be threaded into theopening 12-1 in the end or" the shaft 627a.

if desired, the outer surface of the tubular projection 15 of thesettabie earn member A5 may be knurled for ready manipulation in pul 'igit outward against the force of the spring 116 and tL it to introducethe pin in a selected one of the holes llZ.

The spacing of the holes 122 in the face of tile disc 1% representsincrements of movement of the sheet or film through a distance of /2point. Thus, as indicated by the gauge markings in FlGUrtE 3 of thedrawings, settings oi from /2 point to about 16 points are pos: sible bymeans of his supplemental setting device.

Abutting and secured to the end face of the track bar or rail 56 whichis a fixed part of the base of the machine is the casting 325. Thisrigid attachment of the casting to the rail may be efiected by means ofthe screws 126 as shown clearly in FEGURE 3 and the casting,incidentally, is provided with a bracket extension to which one end ofthe rack is secured as by means of the screw 434a. This rack 483:: isnot directly involved in the specific construction and arrangement ofthe present invention and it is suilicient to state that it has to dowith the proportional movement f the ulti e carriage F and box frame 2as related to a primary car which is received for reciprocating movementby the main base frame 5%) of the machine.

As best shown in FIGURES 3 and 5, the block or casting 1'25 is thickenedconsiderably at a portion 127 which is approximately in line with theaxis of the shaft 62% and is also provided with a notched or recessedportion 128 inwardly of this thickened part. Within this opening ornotch 12? there is disposed a stop pawl element 131? mounted for pivotalmovement about the screw 131. Forward pivotal movement of the pawlmember is limited by the plate or strap 132 secured to the member 35.25as by means of the screws 133. A socket or recess 135 is drilled in thethickened portion 127 of the member 125 rearwardly of the recess 129 anda registering indentation or recess 136 is formed in the rear face ofthe pawl member 13 A coil compression spring 139 is inserted in thesesockets or recesses and serves to urge the pawl 13% forwardly toward thestop plate 32 as shown in the solid line position in FlGURE 5. The pawlcan be retracted to the dotted line position against the urging of thespring 139,

The head 14-9 of the pawl member 13% has a forward extension toward themarginal face of the disc 1% and is adapted to be abutted by the hatface it)? of the pro jection Isl-6 extending from the settable cam andstop member 15. 5. One corner of the head 14% of the pawl 13% may bechamfered as at 142 for a purpose to be described later.

It should be noted that the pawl 13% is carried by a fixed portion ofthe frame of the writing machine since the block 125 is rigidly fixed tothe track bar 56 upon which the carriage F, 216 rolls. On the otherhand, the secondary leading parts ltllll2 carried by the shaft 627::move with the carriage. Thus, in the position shown in FIGURE 1 thecarriage is at its retracted initial position preparatory to typing aline, whereas in FIGURE 4 the carriage is indicated as being at a pointdisplaced from its initial point of rest wherein the head 149 of thepawl 136 is out of the path of rotation of the projection 1% on the camand stop member 1%. Thus, it will be readily seen that during the normalactuation of the primary line space or leading feature in coniunctionwith the regular carriage return operation, the paper or him advanceaccomplished by the controlled rotation of the ratchet takes placeaccording to the ambit of movement of the stop projection 675 on thetape drum, between the fixed stops 6% and the adjustable stop s77carried by the disc 65%, and is not affected by the secondary leadingmechanism.

Sf course, during this movement, shaft 627:; and the secondary leadingmechanism ltlt l2ll carried thereby will rotate respectively in thedirections of the arrows b and c. See FIGURES l and 3 respectively.)However, this occurs wire fixed and movable secondary leading parts aredisplaced from each other as shown in FIGURE 4 of the drawings. returnor" the caring: to its initial or rest position the cam and stop elementwill return to the position shown in Flt?- URE l when the carriage ishalted, the retractive movement of the primary leading parts includingthe shaft 627a will cause the secondary parts lilll2tl to ice directionindicated by the iove in the counterclock arrow d in 3 an thus thesloping cam surface 1% will contact the charnfcred edge of the head lt-ll of the pawl 139 and slide past the pawl, the latter being displacedduring this movement to the dotted line position shown in FIGURE 5.Thus, the parts Hill-42d will slip past the pawl 13%) and resume theposition such as sho vn in FEGURE 3.

Now, let us assume that in addition to the primary leading operationefiected by the apparatus shown in FIG- URES 2 and 6 of the drawings andalso at the right-hand side of Flt? RE 1, it is desired to increase theline spacing or learn. 5 by a predetermined amount. This must beaccompli bed by the use of the secondary leading mechanism shown inFIGURES 37 and at the left-hand side of FIGURE 1, when it is in thevicinity of the rest or return position of the carriage such as shown inFl 7 URE 1 of the drawings. At any rate, it could not be accomplished ifthe carriage had advanced more than say two word spaces. In fact, it hasbeen found that the operation may be accomplished best if the carriagehas been displaced by keyboarding two word spaces before the line spacekey is pressed.

Assuming that the showing in FIGURE 3 is at the condition of rest, themember 1E5, by manipulation of the extended tubular portion 115 may bepulled out against the resistance of the coil spring 11% and rotated toinsert the pin 11% into any selected one of the holes 112 depending uponthe additional leading desired accor rig to the /2 point increments onthe dial or disc tea. The chosen setting shown in FIGURE 3 is of 3points, the flat stop face 167 of the radial projection 1% fallingbetween the designation 3 and the position where the designation 4 wouldoccur.

With the parts in the position described, the depression of the linespace key (or the carriage return key in certain machines) the tape 61%?will be pulled and the drum 65$ rotated, thus advancing the ratchet 662and through the described gearing the paper or film, but this advancecan only be to the extent of the setting of the part 195 with respect tothe disc 1%, for example, for a distance of 3 points. Upon rotation ofthe mechanism together with the shaft 627a the disc 1% and the attachedadjustable cam and stop member 195 will rotate in the direction of thearrow c until the stop face 1%? of the projection 1% abuts the left-handface of the head 1% f the pawl 530. Thus, if we assume that the primaryleading arrangement of FIGURE 2 has been set by the appropriate rotationof the disc 653 to efiect a spacing of 14 points, and the secondarysetting as shown in FIG- URE 3 is set for 3 points, then the totalleading accomplished by both settings would be 17 points. It is to benoted that in no case can the secondary leading setting be more thanthat of the primary setting. Otherwise, the stop member 675 or" the drum6% would strike the adjustable stop 677 before the stop projection 1% ofthe secondary leading mechanism abutted the pawl 1349, and the effectwould be a mere repetition of the primary leading operation which couldbe accomplished by tabulating and pressing the carriage return key afterthe usual initial carriage return and leading operation.

There has thus been provided by the present invention ingenious meansfor accomplishing automatic additional variable leading which isparticularly useful for incorporation in photo-typesetting systems ofthe class described wherein both keyboarding machines and automatic tapeactuated machines are used, but which may be adapted for use in manytypes of movable carriage Writing machines.

It will be understood that various changes and modifications may be madein the embodiment illustrated and described herein without departingfrom the scope of the invention as defined by the subjoined claims.

Having thus described the invention, what is claimed as new and desiredto be secured by Letters Patent is:

l. A machine for producing type composition on a sheet, said machinecomprising a supporting frame, a car riage mounted on said frame forprogressive step-by-step escapement movement therealong in a givendirection and for positive return movement to retracted position as forthe composing of a new line of text, character reproducing means mountedon said frame and adapted to function at a relatively fixed pointthereon, sheet supporting means carried by said carriage and adapted tobe moved horizontally therewith to move a sheet past said reproducingmeans to receive character images successively to produce the line ofcomposition, means on said carriage operatively connected with saidsheet supporting means and actuating the latter for feeding said sheetvertically for the reception or" the succeeding line of composition,actuating means for said feeding means, a rotary device m nted on saidcarriage with its axis parallel with the length of the carriage andhaving a one-way driving connection with said sheet feeding means, meansconnecting said actuating means with said rotary device to rotate it inthe driving direction, a stop projection carried by said rotary devicespaced radially of and adjustably secured circumferentially of saidrotary device to partake of its rotary movement, and disposed to rotatein a plane prependicular to the axis of said rotary device, and a stopabutment mounted directly on said supporting frame and projecting fromsaid frame in a direction longitudii ry of the length of said carriageand into the path of rotation of said stop projection only when saidcarriage is adjacent the limit of its return movement, for limiting theextent of angular movement of said rotary device and thus the extent ofmovement of the sheet feeding member according to the desired linespacing,

2. The machine as set forth in claim 1 in which means are providedwhereby said stop projection is manually adjustable circumferentiallyrelative to the basic structure of the rotary device to vary the extentof rotation of said device and thus the movement of the vertical sheetfeed, and in which said rotary device comprises a spring-restrained rockshaft to which is fixed said driving connecton and a graduated dischaving an annular series of openings therein, said stop projectioncomprising an element coaxial with said shaft and disc and having aradial arm adapted to contact said stop abutment, and means forconnecting said coaxial element to said disc in any selected one of aplurality of angular positions, said last named means comprising a pincarried by said element and insertable in one of said openings in thedisc, and resiliently yieldable means urging said element into contactwith said disc.

3. A machine for producing type composition on a sheet, said machinecomprising a supporting frame, a carriage mounted on said frame forprogressive step-bystep escapement movement therealong in a givendirection and for positive return movement to retracted position as forLh composing of a new line of text, character reproducing means mountedon said frame and adapted to function at a relatively fixed pointthereon, sheet supporting means carried by said carriage and adapted tobe moved horizontally therewith to move a sheet past said reproducingmeans to receive character images successively to produce the line ofcomposition, means on said carriage operatively connected with saidsheet supporting means and actuating the latter for feeding said sheetvert cally for the reception of the succeeding line of composition,actuating means for said feeding means, a rotary device mounted on saidcarriage and having a one-way driving connection with said sheet feedingmeans, means connecting said actuating means with said rotary device torotate it in the o -ving direction, spring means for urgin said rotarydevice toward retracted position, a first stop projection on said rotarydevice, a first stop abutment on said carriage adapted to be contactedby said first stop projection to limit the total angular movement ofsaid rotary device upon any single operation of said actuating meansregardless of the position of said carriage, a second stop projectioncarried by said rotary device, and a second stop abutment on saidsupporting frame and disposed in the path or" movement of said secondstop projection and operative to limit the movement of said rotarydevice only when the carriage is adjacent its retracted or returnedposition, a return abutment adapted to be contacted by one of said stopprojections to determine the zero position of the line space feed of thesheet under the urging of the spring retracting means, manually settablemeans for said first-named stop abutment for predetermining the totalextent of movement permitted the device, and manually settable means foradjusting the seocnd-named stop projection with reference to sa d rotarydevice.

4. A machine for producing type composition on a sheet, saic machinecomprising a supporting frame, a

carriage mounted on said frame for progressive step-bystep escapementmovement therealong in a given direction and for positive returnmovement to retracted position as for the composing of a new line oftext, character reproducing means mounted on said frame and adapted tofunction at a relatively fixed point thereon, sheet supporting meanscarried by said carriage and adapted to be moved horizontally therewithto move a sheet past said reproducing means to receive character imagessuccessively to produce the line of composition, means on said carriageoperatively connected with said sheet supporting means and actuating thelatter for feeding said sheet vertically for the reception of thesuceeding line of composition, carriage return mechanism in said machineand actuating means for said carriage return mechanism, means associatedwith said carriage return mechanism and adapted to be actuatedconcomitantly with the carriage return mechanism for effecting apredetermined vertical feed of said sheet, means for limiting the actionof said feeding means to a predetermined amount for normal line spacingat any time that the carriage is occupying a position remote from itsretracted or returned position, and similar means for limiting theaction of the feeding means to an additional independently predeterminedvertical feed of the sheet only when said carriage is adjacent itsretracted or returned position and thus without carriage return.

5. A machine for producing type composition on a sheet, said machinecomprising a supporting frame, a carriage mounted on said frame forprogressive step-bystep escapement movement therealong in a givendirection and for positive return movement to retracted position as forthe composing of a new line of text, character re producing meansmounted on said frame and adapted to function at a relatively fixedpoint thereon, sheet supporting means carried by said carriage andadapted to be moved horizontally therewith to move a sheet past saidreproducing means to receive character images successively to producethe line of composition, means on said carriage operatively connectedwith said sheet supporting means and actuating the latter for feedingsaid sheet vertically for the reception of the succeeding line ofcomposition, carriage return mechanism in said machine and actuatingmeans for said carriage return mechanism, means associated with saidcarriage return mechanism and adapted to be actuated concomitantly withthe carriage return mechanism for effecting a predetermined verticalfeed of said sheet, means for limiting the action of said feeding meansto a predetermined amount for normal line spacing at any time that thecarriage is occupying a position remote from its retracted or returnedposition, said last named means comprising a rotary device on saidcarriage and an adjustable stop abutment also on said carriage forlimiting the rotary movement of said device for normal line space feed,a stop member carried by said rotary device and means for efiecting arelative rotary adjustment between said rotary means and said stopmember, and a second stop abutment, said second stop abutment carried bysaid supporting frame and disposed in the path of said stop member onlywhen said carriage is in retracted or returned position, said last namedstop abutment being yieldable upon contact by said stop member uponreturn movement of the latter during retraction of the rotary memberupon return of the carriage and after a normal line space movement, topermit the return movement of said stop member. 7

6. The machine as set forth in claim 5 in which said stop membercomprises a radial arm extending from the axis of said device and havinga fiat abutting surface on the forward side thereof and an inclinedsurface on the rear side thereof, in which said second named stopabutment comprises a spring-urged element adapted to be abutted by theflat face of said arm when the latteris moved in the feed direction whenthe carriage is adjacent retracted or returned position, and yieldablydisplaced by the inclined rear face of said second stop abutment uponreturn movement of the arm at said retracted or returned position aftermovement of the arm beyond said abutment during normal line space feedstroke of the device effected prior to carriage return.

7. A machine for producing type composition on a sheet, said machinecomprising a supporting frame, a carriage mounted on said frame forprogressive step-bystep escapement movement therealong in a givendirection and for positive return movement to retracted position as forthe composing of a new line of text, character reproducing means mountedon said frame and adapted to function at a relatively fixed pointthereon, sheet supporting means carried by said carriage and adapted tobe moved horizontally therewith to move a sheet past said reproducingmeans to receive character images successively to produce the line ofcomposition, means on said carriage operatively connected with saidsheet supporting means and actuating the latter for feeding said sheetvertically for the reception of the succeeding line of composition,actuating means for said feeding means, a rock shaft mounted on bearingson the carriage and extending longitudinally of said carriage, aratcheting de vice fixed to said shaft adjacent one end thereof at oneend of the carriage, a ratchet Wheel adapted to be rotated in onedirection by said ratcheting device, operative connections between saidratchet wheel and said sheet feeding means, means connecting saidactuating means with said ratcheting device to rotate it in the drivingdirection to an extent governing a predetermined movement of said sheetfeeding means, a stop projection extending radially from said shaft nearthe opposite end thereof and at the opposite end of said carriage, meansfor the setting of said stop projection at selected positionscircumferentially of said shaft, a stop abutment on said supportingframe carried directly by said supporting frame and disposed in the pathof movement of said stop projection, only when the carriage and saidstop projection carried thereby are in substantially fully returnedposition, to gauge a supplemental rotative movement of said shaft andsaid sheet feeding means, both the stop projection and the stop abutmentbeing of an extent longitudinally of the carriage which is but a minorfraction of the length of said carriage and any departure from at leastpartial registry, as when the carriage is in a fully returned positionor within a few letter spaces thereof, will render said gauging functioninoperative.

References Cited in the file of this patent UNITED STATES PATENTS1,095,573 Henning May 5, 1914 2,098,319 Thompson Nov. 9, 1937 2,262,676Helmond Nov. 11, 1941 2,395,763 Sagner Feb. 26, 1946 FOREIGN PATENTS753,956 Germany Mar, 8, 1954

1. A MACHINE FOR PRODUCING TYPE COMPOSITION ON A SHEET, SAID MACHINECOMPRISING A SUPPORTING FRAME, A CAR RIAGE MOUNTED ON SAID FRAME FORPROGRESSIVE STEP-BY-STEP ESCAPEMENT MOVEMENT THEREALONG IN A GIVENDIRECTION AND FOR POSITIVE RETURN MOVEMENT TO RETRACTED POSITION AS FORTHE COMPOSING OF A NEW LINE OF TEXT, CHARACTER REPRODUCING MEANS MOUNTEDON SAID FRAME AND ADAPTED TO FUNCTION AT A RELATIVELY FIXED POINTTHEREON, SHEET SUPPORTING MEANS CARRIED BY SAID CARRIAGE AND ADAPTED TOBE MOVED HORIZONTALLY THEREWITH TO MOVE A SHEET PAST SAID REPRODUCINGMEANS TO RECEIVE CHARACTER IMAGES SUCCESSIVELY TO PRODUCE THE LINE OFCOMPOSITION, MEANS ON SAID CARRIAGE OPERATIVELY CONNECTED WITH SAIDSHEET SUPPORTING MEANS AND ACTUATING THE LATTER FOR FEEDING SAID SHEETVERTICALLY FOR THE RECEPTION OF THE SUCCEEDING LINE OF COMPOSITION,ACTUATING MEANS FOR SAID FEEDING MEANS, A ROTARY DEVICE MOUNTED ON SAIDCARRIAGE WITH ITS AXIS PARALLEL WITH THE LENGTH OF THE CARRIAGE ANDHAVING A ONE-WAY DRIVING CONNECTION WITH SAID SHEET FEEDING MEANS, MEANSCONNECTING SAID ACTUATING MEANS WITH SAID ROTARY DEVICE TO ROTATE IT INTHE DRIVING DIRECTION, A STOP PROJECTION CARRIED BY SAID ROTARY DEVICESPACED RADIALLY OF AND ADJUSTABLY SECURED CIRCUMFERENTIALLY OF SAIDROTARY DEVICE TO PARTAKE OF ITS ROTARY MOVEMENT, AND DISPOSED TO ROTATEIN A PLANE PERPENDICULAR TO THE AXIS OF SAID ROTARY DEVICE, AND A STOPABUTMENT MOUNTED DIRECTLY ON SAID SUPPORTING FRAME AND PROJECTING FROMSAID FRAME IN A DIRECTION LONGITUDINALLY OF THE LENGTH OF SAID CARRIAGEAND INTO THE PATH OF ROTATION OF SAID STOP PROJECTION ONLY WHEN SAIDCARRIAGE IS ADJACENT THE LIMIT OF ITS RETURN MOVEMENT, FOR LIMITING THEEXTENT OF ANGULAR MOVEMENT OF SAID ROTARY DEVICE AND THUS THE EXTENT OFMOVEMENT OF THE SHEET FEEDING MEMBER ACCORDING TO THE DESIRED LINESPACING.